Answer:
An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without modification, growth could not occur. i hope this help
Explanation:
Answer:
2(B)-Elements that prevent a population from growing to its maximum potential.
Explanation:
Limiting factors are factors that limit the growth of a population, so 2(B) would be correct.
Answer:
e. is under purifying selection
Explanation:
Purifying selection removes deleterious alleles that can arise through
random mutations
.
Mutations may or may not have consequences at the level of genetic expression depending on whether those mutations are synonymous or nonsynonymous. Synonymous mutations do not generate changes in the protein to be encoded while non-synonymous ones do.
Important genes for the development of the organism - such as those involved in the neural development- are very likely to be under purifying selection, eliminating individuals with deleterious alleles since those alleles (product of non-synonymous substitutions) do not allow the individuals to survive.
Answer:
There are two main sources of fresh water in California.
1) Groundwater: This water source is present inside the earth at a specific depth. In california this water is extracted from pumping it through machine.
2) Surface water: This water consist of lakes, rivers etc that flows from mountainous part to the lower region. In california this water is collected in dams and big reservoirs when snow is melted in the mountainous regions of the state and used when it is needed.
